Nail gun with a pad holding device

ABSTRACT

A nail gun has a body, a nail magazine, a pad supplier and a pad holding device. The pad holding device is mounted between the body and the pad supplier and has a base plate, an outer cap and a holding ring. The base plate is attached to the body, is connected to the pad supplier and has a pad channel and a holding hole. The outer cap has an outlet and a recess. The holding ring is C-shaped, is held inside the recess in the outer cap, aligns with the holding hole and has an inner diameter and an outer diameter. The inner diameter is slightly small than that of the holding hole to make the holding ring partially overlap with the holding hole to allow the holding ring to be expanded inside the recess.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a nail gun, and more particularly to anail gun with a pad holding device that has a simplified structure.

2. Description of Related Art

To keep an object from being broken or damaged due to a huge impactforce applied by a nail, a pad is always be simultaneously shot from anail gun at that time of shooting the nail from the nail gun. The padcan provide a buffering effect to the impact force between the objectand the nail to keep the object from being damaged. With reference toFIGS. 7 and 8, a nail gun with a pad holding device (60) in accordancewith the prior art substantially comprises a body (50), a nail magazine(52), a pad supplier (54) and a pad holding device (60). The body (50)has a muzzle (502) from which a nail is shot. The nail magazine (52) isattached to the body (50) for containing nails inside and communicateswith the muzzle (502) in the body (50). The pad supplier (54) connectedto the body (50) and contains pads inside. The pad holding device (60)is mounted between the pad supplier (54) and the body (50) to hold onepad to align with the muzzle (502). When a nail is shot from the muzzle(502), the pad held in the pad holding device (60) will be extended byand shot with the nail. The pad holding device (60) comprises a baseplate (62), a middle plate (64) and an outer cap (66). The base plate(62) is attached to the body (50) and has a through hole (622) aligningwith the muzzle (502). The middle plate (64) is attached to the baseplate (62) to define a pad channel between the base plate (62) and themiddle plate (64). The middle plate (64) has a holding hole (644)aligning with the through hole (622) in the base plate (62) and themuzzle (502). The outer cap (64) is attached to the middle plate (64)and has an outlet (662) aligning with the holding hole (644) in themiddle plate (64) and the through hole (622) in the base plate (62). Tokeep the pad from escaping from the holding hole (644) and the outlet(642) directly before a nail being shot, the diameter of the holdinghole (644) is slight smaller than that of the pad. When a nail is shotfrom the muzzle (502), the shot nail will extend through the pad andtake the pad to pass through the holding hole (644) and the outlet (662)to be shot with the nail. When the pad is shot with the nail, the padwill slightly deformed to allow the pad to pass through the holding hole(644).

Therefore, the diameter of the holding hole (644) must be precise tohold the pad before the pad being shot and to allow the pad to passthrough, to manufacturing a nail gun with a pad holding device istime-consuming and costly. In addition, there is not any element betweenthe base plate (62) and middle plate (64) to hold the pad at a fixedlocation where aligning with the muzzle (502) precisely. The pad in thepad channel will not align with the muzzle (502) and the holding hole(644) when the pad is shot with the nail, and this easily causes thedamage of the pad.

To overcome the shortcomings, the present invention tends to provide anail gun with a pad holding device to mitigate or obviate theaforementioned problems.

SUMMARY OF THE INVENTION

The main objective of the invention is to provide a nail gun with a padholding device that has a simplified structure. The nail gun has a body,a nail magazine, a pad supplier and a pad holding device. The body has amuzzle. The nail magazine is attached to the body for containing nailsinside. The pad supplier is connected to the body for containing padsinside. The pad holding device is mounted between the muzzle of the bodyand the pad supplier and has a base plate, an outer cap and a holdingring. The base plate is attached to the muzzle of the body, is connectedto the pad supplier and has a pad channel and a holding hole. The padchannel is defined in the base plate. The holding hole communicates withthe pad channel, aligns with the muzzle in the body and has a diameter.The outer cap is attached to the base plate, corresponds to the holdinghole and has an outlet and a recess. The outlet is defined through theouter cap and aligns with the holding hole in the base plate. The recessis defined in the outer cap at a side facing the base plate, around andcommunicating with the outlet and has an inner diameter. The holdingring is C-shaped, is held inside the recess in the outer cap, alignswith the holding hole and has an inner diameter and an outer diameter.The inner diameter is slightly small than that of the holding hole tomake the holding ring partially overlap with the holding hole. The outerdiameter is smaller than the inner diameter of the recess in the outercap to allow the holding ring to be expanded inside the recess.

Other objects, advantages and novel features of the invention willbecome more apparent from the following detailed description when takenin conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded perspective view of a first embodiment of a padholding device for a nail gun in accordance with the present invention;

FIG. 2 is a top plan view of the pad holding device in FIG. 1;

FIG. 3 is an operational side plan view of the pad holding device inFIG. 1;

FIG. 4 is an operational side plan view of the pad holding device inFIG. 3 showing that the holding ring is expanded to allow the pad topass through the holding ring;

FIG. 5 is an exploded perspective view of a second embodiment of a padholding device for a nail gun in accordance with the present invention;

FIG. 6 is an exploded perspective view of a third embodiment of a padholding device for a nail gun in accordance with the present invention;

FIG. 7 is a perspective view of a nail gun with a conventional padholding device in accordance with the prior art; and

FIG. 8 is an exploded perspective view of the conventional pad holdingdevice in FIG. 7.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENT

With reference to FIGS. 1 and 2, a nail gun in accordance with thepresent invention comprises a body (10), a nail magazine, a pad supplier(12) and a pad holding device (20). The body (10) has a muzzle (102)from which a nail is shot. The nail magazine is attached to the body(10) for containing nails inside and communicates with the muzzle (102)in the body (10). The pad supplier (12) connected to the body (10) andcontains pads inside. The body (10), the nail magazine and the padsupplier (12) may be a conventional one as shown in FIG. 7, and thedetailed structures of the body (10), the nail magazine and the padsupplier (12) is omitted.

The pad holding device (20) is mounted between the muzzle (102) of thebody (10) and the pad supplier (12) and comprises a base plate (22), anouter cap (24) and a holding ring (26). The base plate (22) is attachedto the muzzle (102) of the body (10), is connected to the pad supplier(12) and has a pad channel (222) defined in the base plate (22) and aholding hole (224). The holding hole (224) communicates with the padchannel (222), aligns with the muzzle (102) in the body (10) and has adiameter. The holding hole (224) has a depth larger than that of the padchannel (222).

The outer cap (24) is attached to the base plate (22) and corresponds tothe holding hole (224). The outer cap (24) has an outlet (242) and aring recess (244). The outlet (242) is defined through the outer cap(24) and aligns with the holding hole (224) in the base plate (22). Therecess (244) is defined in the outer cap (24) at a side facing the baseplate (22), is around and communicates with the outlet (242) and has aninner diameter.

The holding ring (26) is C-shaped, is held inside the recess (244) inthe outer cap (24) and aligns with the holding hole (224). The holdingring (26) has an inner diameter slightly small than that of a pad andthat of the holding hole (224) to make the holding ring (26) partiallyoverlap with the holding hole (224). The holding ring (26) has an outerdiameter smaller than the inner diameter of the recess (244) in theouter cap (24) to allow the holding ring (26) to be expanded inside therecess (244).

In operation, with further reference to FIGS. 3 and 4, a pad (40) issupplied from the pad supplier (12) and is led into the holding hole(224) through the pad channel (222) in the base plate (22). Because thedepth of the holding hole (224) is larger than that of the pad channel(222), the pad (40) will be held inside the holding hole (224) at afixed location to ensure the pad (40) to align with the muzzle (102).With the arrangement of the holding ring (26), the pad (40) is kept fromescaping from the outlet (242) directly before a nail is shot. When anail is shot, the nail will extend through the pad (40) inside theholding hole (224) and take the pad (40) out of the outlet (242) withthe nail. When the pad (40) is shot with the nail, the pad (40) willpresses against the C-shaped holding ring (26) to expand the holdingring (26) inside the recess (244) so as to allow the pad (40) to passthrough the expanded holding ring (26). Accordingly, the pad (40) willnot be deformed, and the shot cap (40) can be kept from damaged.

With such a pad holding device (20) in accordance with the presentinvention, the structure of the pad holding device (20) is simplified,and the cost for manufacturing a nail gun with a pad holding device (20)is lowered.

With reference to FIG. 5, in a second embodiment, the holding ring (26A)has multiple protruding tips (262) extending outward from the holdingring (26A). When the holding ring (26A) is held inside the recess (244)in the outer cap (24), the protruding tips (262) abuts the inner wall ofthe recess (244) so as to improve the resilience of the holding ring(26A).

With reference to FIG. 6, in a third embodiment, the holding ring (26B)has multiple protruding tips (264) extending inward from the holdingring (26B). When one pad (40) is held inside the holding hole (224) inthe base plate (22), the pad (24) is held by the protrusion tips (264)on the holding ring (26B).

Even though numerous characteristics and advantages of the presentinvention have been set forth in the foregoing description, togetherwith details of the structure and function of the invention, thedisclosure is illustrative only, and changes may be made in detail,especially in matters of shape, size, and arrangement of parts withinthe principles of the invention to the full extent indicated by thebroad general meaning of the terms in which the appended claims areexpressed.

1. A nail gun comprising: a body having a muzzle; a nail magazineattached to the body for containing nails inside; a pad supplierconnected to the body for containing pads inside; and a pad holdingdevice mounted between the muzzle of the body and the pad supplier andcomprising a base plate attached to the muzzle of the body, connected tothe pad supplier and having a pad channel defined in the base plate; anda holding hole communicating with the pad channel, aligning with themuzzle in the body and having a diameter; an outer cap attached to thebase plate, corresponding to the holding hole and having an outletdefined through the outer cap and aligning with the holding hole in thebase plate; and a recess defined in the outer cap at a side facing thebase plate, around and communicating with the outlet and having an innerdiameter; and a holding ring being C-shaped, held inside the recess inthe outer cap, aligning with the holding hole and having an innerdiameter slightly small than that of the holding hole to make theholding ring partially overlap with the holding hole; and an outerdiameter smaller than the inner diameter of the recess in the outer capto allow the holding ring to be expanded inside the recess.
 2. Thescissors as claimed in claim 1, wherein the holding ring has multipleprotruding tips extending outward from the holding ring.
 3. The scissorsas claimed in claim 2, wherein the holding hole has a depth larger thanthat of the pad channel.
 4. The scissors as claimed in claim 1, whereinthe holding ring has multiple protruding tips extending inward from theholding ring.
 5. The scissors as claimed in claim 4, wherein the holdinghole has a depth larger than that of the pad channel.
 6. The scissors asclaimed in claim 1, wherein the holding hole has a depth larger thanthat of the pad channel.